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Operating Manual SunCool for SUNTEST
®
CPS+
7
Operation
7.3 Starting the cooling process
A short safety check must be performed on the chiller
every time it is started:
• Check whether the coolant hoses have been installed
with sufficient bending radius and are not kinked.
• Check whether the coolant is leaking from the coolant
hoses or the instrument connections.
• Make sure that the condensation drain of the evaporator
unit is fed into a sewer drain or waste water tank.
NOTE – delayed cooling start
The cooling process does not start until shortly after swit-
ching on the chiller. If this start delay should present a
problem for any temperature-sensitive samples, a delayed
program start can be selected in the instrument control
of the test instrument.
NOTE – software documentation
The operation of the instrument control and the program-
ming of the test programs are explained in the separate
software documentation manual.
NOTE – air temperature (Fig. 7)
Constantly cooled air is fed into the test chamber. By
altering the distance between the evaporator unit and the
air inlet aperture of the SUNTEST CPS+, the air tempe-
rature can be adjusted upwards. Since the temperature
value depends on the climatic conditions of the room of
installation, the alteration value of the air temperature must
be determined by experimentation. However, in order to
achieve full cooling power, the evaporator unit must be
placed directly in contact with the SUNTEST CPS+ unit.
Fig. 7
-°C
+°C
